14 |
|
#include "otypes.h" |
15 |
|
#include "otspecial.h" |
16 |
|
#include "random.h" |
17 |
+ |
#include "pmap.h" |
18 |
|
|
19 |
|
#define MAXCSET ((MAXSET+1)*2-1) /* maximum check set size */ |
20 |
|
|
51 |
|
setcolor(r->rcoef, 1., 1., 1.); |
52 |
|
} else { |
53 |
|
rw = intens(rc); |
54 |
+ |
if (rw > 1.0) |
55 |
+ |
rw = 1.0; /* avoid calculation growth */ |
56 |
|
if (rc != r->rcoef) |
57 |
|
copycolor(r->rcoef, rc); |
58 |
|
} |
109 |
|
return(-1); |
110 |
|
if (r->crtype & SHADOW) /* shadow commitment */ |
111 |
|
return(0); |
112 |
+ |
/* ambient in photon map? */ |
113 |
+ |
if (ro != NULL && ro->crtype & AMBIENT) { |
114 |
+ |
if (causticPhotonMapping) |
115 |
+ |
return(-1); |
116 |
+ |
if (photonMapping && rt != TRANS) |
117 |
+ |
return(-1); |
118 |
+ |
} |
119 |
|
if (maxdepth <= 0 && rc != NULL) { /* Russian roulette */ |
120 |
|
if (minweight <= 0.0) |
121 |
|
error(USER, "zero ray weight in Russian roulette"); |
145 |
|
r->robj = OVOID; |
146 |
|
r->ro = NULL; |
147 |
|
r->rox = NULL; |
148 |
< |
r->rt = r->rot = FHUGE; |
148 |
> |
r->rxt = r->rmt = r->rot = FHUGE; |
149 |
|
r->pert[0] = r->pert[1] = r->pert[2] = 0.0; |
150 |
|
r->uv[0] = r->uv[1] = 0.0; |
151 |
|
setcolor(r->pcol, 1.0, 1.0, 1.0); |
152 |
+ |
setcolor(r->mcol, 0.0, 0.0, 0.0); |
153 |
|
setcolor(r->rcol, 0.0, 0.0, 0.0); |
154 |
|
} |
155 |
|
|
192 |
|
{ |
193 |
|
RAY tr; |
194 |
|
|
195 |
< |
if (rayorigin(&tr, TRANS, r, NULL) == 0) { |
196 |
< |
VCOPY(tr.rdir, r->rdir); |
197 |
< |
rayvalue(&tr); |
198 |
< |
copycolor(r->rcol, tr.rcol); |
199 |
< |
r->rt = r->rot + tr.rt; |
195 |
> |
rayorigin(&tr, TRANS, r, NULL); /* always continue */ |
196 |
> |
VCOPY(tr.rdir, r->rdir); |
197 |
> |
rayvalue(&tr); |
198 |
> |
copycolor(r->rcol, tr.rcol); |
199 |
> |
r->rmt = r->rot + tr.rmt; |
200 |
> |
r->rxt = r->rot + tr.rxt; |
201 |
> |
} |
202 |
> |
|
203 |
> |
|
204 |
> |
int |
205 |
> |
raytirrad( /* irradiance hack */ |
206 |
> |
OBJREC *m, |
207 |
> |
RAY *r |
208 |
> |
) |
209 |
> |
{ |
210 |
> |
if ((ofun[m->otype].flags & (T_M|T_X)) && m->otype != MAT_CLIP) { |
211 |
> |
if (istransp(m->otype) || isBSDFproxy(m)) { |
212 |
> |
raytrans(r); |
213 |
> |
return(1); |
214 |
> |
} |
215 |
> |
if (!islight(m->otype)) |
216 |
> |
return((*ofun[Lamb.otype].funp)(&Lamb, r)); |
217 |
|
} |
218 |
+ |
return(0); /* not a qualifying surface */ |
219 |
|
} |
220 |
|
|
221 |
|
|
225 |
|
int mod |
226 |
|
) |
227 |
|
{ |
228 |
+ |
int tst_irrad = do_irrad && !(r->crtype & ~(PRIMARY|TRANS)); |
229 |
|
OBJREC *m; |
230 |
|
|
231 |
< |
r->rt = r->rot; /* set effective ray length */ |
231 |
> |
r->rxt = r->rmt = r->rot; /* preset effective ray length */ |
232 |
|
for ( ; mod != OVOID; mod = m->omod) { |
233 |
|
m = objptr(mod); |
234 |
|
/****** unnecessary test since modifier() is always called |
238 |
|
} |
239 |
|
******/ |
240 |
|
/* hack for irradiance calculation */ |
241 |
< |
if (do_irrad && !(r->crtype & ~(PRIMARY|TRANS)) && |
242 |
< |
m->otype != MAT_CLIP && |
243 |
< |
(ofun[m->otype].flags & (T_M|T_X))) { |
214 |
< |
if (irr_ignore(m->otype)) { |
215 |
< |
raytrans(r); |
216 |
< |
return(1); |
217 |
< |
} |
218 |
< |
if (!islight(m->otype)) |
219 |
< |
m = &Lamb; |
220 |
< |
} |
241 |
> |
if (tst_irrad && raytirrad(m, r)) |
242 |
> |
return(1); |
243 |
> |
|
244 |
|
if ((*ofun[m->otype].funp)(m, r)) |
245 |
|
return(1); /* materials call raytexture() */ |
246 |
|
} |
272 |
|
multcolor(r->rcol, ce); /* path extinction */ |
273 |
|
if (r->crtype & SHADOW || intens(r->albedo) <= FTINY) |
274 |
|
return; /* no scattering */ |
275 |
< |
setcolor(ca, |
276 |
< |
colval(r->albedo,RED)*colval(ambval,RED)*(1.-colval(ce,RED)), |
277 |
< |
colval(r->albedo,GRN)*colval(ambval,GRN)*(1.-colval(ce,GRN)), |
278 |
< |
colval(r->albedo,BLU)*colval(ambval,BLU)*(1.-colval(ce,BLU))); |
279 |
< |
addcolor(r->rcol, ca); /* ambient in scattering */ |
275 |
> |
|
276 |
> |
/* PMAP: indirect inscattering accounted for by volume photons? */ |
277 |
> |
if (!volumePhotonMapping) { |
278 |
> |
setcolor(ca, |
279 |
> |
colval(r->albedo,RED)*colval(ambval,RED)*(1.-colval(ce,RED)), |
280 |
> |
colval(r->albedo,GRN)*colval(ambval,GRN)*(1.-colval(ce,GRN)), |
281 |
> |
colval(r->albedo,BLU)*colval(ambval,BLU)*(1.-colval(ce,BLU))); |
282 |
> |
addcolor(r->rcol, ca); /* ambient in scattering */ |
283 |
> |
} |
284 |
> |
|
285 |
|
srcscatter(r); /* source in scattering */ |
286 |
|
} |
287 |
|
|
320 |
|
) |
321 |
|
{ |
322 |
|
RAY fr, br; |
323 |
+ |
double mfore, mback; |
324 |
|
int foremat, backmat; |
325 |
|
int i; |
326 |
|
/* bound coefficient */ |
367 |
|
scalecolor(br.rcol, 1.0-coef); |
368 |
|
copycolor(r->rcol, fr.rcol); |
369 |
|
addcolor(r->rcol, br.rcol); |
370 |
< |
r->rt = bright(fr.rcol) > bright(br.rcol) ? fr.rt : br.rt; |
370 |
> |
mfore = bright(fr.mcol); mback = bright(br.mcol); |
371 |
> |
r->rmt = mfore > mback ? fr.rmt : br.rmt; |
372 |
> |
r->rxt = bright(fr.rcol)-mfore > bright(br.rcol)-mback ? |
373 |
> |
fr.rxt : br.rxt; |
374 |
|
return(1); |
375 |
|
} |
376 |
|
|